RO82602B1 - Forming mixture for casting bay with cold self-hardening - Google Patents

Forming mixture for casting bay with cold self-hardening

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Publication number
RO82602B1
RO82602B1 RO104829A RO10482981A RO82602B1 RO 82602 B1 RO82602 B1 RO 82602B1 RO 104829 A RO104829 A RO 104829A RO 10482981 A RO10482981 A RO 10482981A RO 82602 B1 RO82602 B1 RO 82602B1
Authority
RO
Romania
Prior art keywords
mixture
hardening
forming mixture
temperature range
quartz sand
Prior art date
Application number
RO104829A
Other languages
Romanian (ro)
Other versions
RO82602A2 (en
Inventor
Ecaterina Szocs
Stefan Szocs
Alexandru Gal
Laszlo Balint
Gyula Antal
Original Assignee
îNTREPRINDEREA DE FIER
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by îNTREPRINDEREA DE FIER filed Critical îNTREPRINDEREA DE FIER
Priority to RO81104829A priority Critical patent/RO82602A2/en
Publication of RO82602B1 publication Critical patent/RO82602B1/en
Publication of RO82602A2 publication Critical patent/RO82602A2/en

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Abstract

Amestecul de formare pentru turnatorie cu autoîntarire la rece, cu o durata de utilizare în intervalul de temperaturi de 15...25 degree C de 5...50 s, conform inventiei, este constituit dintr-un amestec primar format din nisip cuartos, cu adaos de întaritor pe baza de acid sulfonic, cu o durata de utilizare în intervalul de temperaturi de 15...25 degree C, de 24...72 h, la care pentru obtinerea amestecului final, se adauga în momentul utilizarii 2...4% rasina fenolica uzuala ca liant. în scopul obtinerii unui amestec calitativ superior utilizabil atât la masinile de împuscat miez cât si la liniile mecanizate de formare, amestecul contine ca întaritor 1,3...2,2% acid ditoluensulfonic, raportat la cantitatea totala de nisip cuartos a amestecului.The cold-casting foundry molding mixture with a duration of use in the temperature range 15 ... 25 ° C of 5 ... 50 s according to the invention consists of a primary mixture of quartz sand, with the addition of a sulphonic acid hardener, with a service life in the temperature range of 15 ... 25 ° C, 24 ... 72 hours, to which, in order to obtain the final mixture, it is added at the time of use. .4% phenolic resin usually used as a binder. In order to obtain a superior qualitatively useful mixture both in the core shotgun and the mechanized forming lines, the mixture contains as a hardener 1.3 ... 2.2% of ditoluenesulfonic acid, based on the total amount of quartz sand of the mixture.

RO81104829A 1981-07-10 1981-07-10 MOLDING MATERIAL FOR FOUNDRY WITH COLD SELF-CURING RO82602A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO81104829A RO82602A2 (en) 1981-07-10 1981-07-10 MOLDING MATERIAL FOR FOUNDRY WITH COLD SELF-CURING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO81104829A RO82602A2 (en) 1981-07-10 1981-07-10 MOLDING MATERIAL FOR FOUNDRY WITH COLD SELF-CURING

Publications (2)

Publication Number Publication Date
RO82602B1 true RO82602B1 (en) 1983-09-30
RO82602A2 RO82602A2 (en) 1983-10-15

Family

ID=20110206

Family Applications (1)

Application Number Title Priority Date Filing Date
RO81104829A RO82602A2 (en) 1981-07-10 1981-07-10 MOLDING MATERIAL FOR FOUNDRY WITH COLD SELF-CURING

Country Status (1)

Country Link
RO (1) RO82602A2 (en)

Also Published As

Publication number Publication date
RO82602A2 (en) 1983-10-15

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